🔧 Elevate your toolkit with precision and power — don’t get left behind!
The Stanley Proto J7121 is a 1/2-inch square extension with a 7/16-inch hex drive, forged from durable steel and featuring a ball detent for secure socket retention. Made in the USA, it offers quick size identification with stamped markings and is designed for hand-powered applications, delivering reliable performance in a compact, lightweight form.
| Brand | Stanley Proto |
| Item Length | 6.25 Inches |
| Material | Blend |
| Finish Type | Brushed |
| Number of Pieces | 1 |
| Drive Bit Shank Style | Hex with Square Drive |
| UPC | 662679340155 |
| Global Trade Identification Number | 00662679340155 |
| Bit Compatibilities | 1/2", 7/16" |
| Manufacturer | Stanley Proto |
| Part Number | J7121 |
| Item Weight | 2.4 ounces |
| Item model number | J7121 |
| Size | Оnе Расk |
| Color | Multi |
| Style | Classic |
| Finish | Brushed |
| Pattern | Solid |
| Shape | Rectangular |
| Power Source | hand_powered |
| Item Package Quantity | 1 |
| Head Style | Hex |
| Number of Handles | 1 |
| Measurement System | Inch |
| Compatible Fastener Range | 0.5 inches |
| Included Components | 1/2" Square Extension 7/16" Hex |
| Batteries Included? | No |
| Batteries Required? | No |
| Warranty Description | Manufacturer |
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